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Groups > linux.kernel > #1393110
| From | Ingo Molnar <mingo@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 07/21] X86_64, UV: Disable Obsolete APIC ID fixup code used only on UV1 |
| Date | 2016-05-03 09:40 +0200 |
| Message-ID | <ruD61-3HL-3@gated-at.bofh.it> (permalink) |
| References | <rtoC5-4GO-1@gated-at.bofh.it> <rtoC6-4GO-31@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
* Mike Travis <travis@sgi.com> wrote:
> +config X86_UV1_SUPPORTED
> + bool "SGI Ultraviolet Series 1 Supported"
> + depends on X86_UV
So I still think it's much simpler if we simply eliminate this Kconfig
complication and have it all compatible. AFAICS the runtime impact on newer
systems comes down mostly to a single unlikely branch:
> static unsigned int x2apic_get_apic_id(unsigned long x)
> {
> - unsigned int id;
> + if (likely(!uv1_apic_driver))
> + return x;
Thanks,
Ingo
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[PATCH 00/21] X86_64, UV: Update kernel for SGI UV4 support Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[PATCH 18/21] X86_64, UV: Build GAM reference tables Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Build GAM reference tables tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 17/21] X86_64, UV: Support UV4 socket address changes Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Support UV4 socket address changes tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 09/21] X86_64, UV: Update MMIOH setup function to work for both UV3 and UV4 Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Update MMIOH setup function to work for both UV3 and UV4 tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 03/21] X86_64, UV: Add UV4 Specific Defines Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Add UV4 Specific Defines tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 11/21] X86_64, UV: Move scir info to the per cpu info struct Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Move scir info to the per cpu info struct tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 15/21] X86_64, UV: Add UV4 addressing discovery function Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Add UV4 addressing discovery function tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 13/21] X86_64, UV: Allocate common per node hub info structs on local node Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Allocate common per node hub info structs on local node tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 14/21] X86_64, UV: Fold blade info into per node hub info structs Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Fold blade info into per node hub info structs tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 21/21] X86_64, UV: Fix incorrect nodes and pnodes for cpuless and memoryless nodes Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Fix incorrect nodes and pnodes for cpuless and memoryless nodes tip-bot for Dimitri Sivanich <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 07/21] X86_64, UV: Disable Obsolete APIC ID fixup code used only on UV1 Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
Re: [PATCH 07/21] X86_64, UV: Disable Obsolete APIC ID fixup code used only on UV1 Ingo Molnar <mingo@kernel.org> - 2016-05-03 09:40 +0200
Re: [PATCH 07/21] X86_64, UV: Disable Obsolete APIC ID fixup code used only on UV1 Mike Travis <travis@sgi.com> - 2016-05-03 16:50 +0200
[PATCH 10/21] X86_64, UV: Create per cpu info structs to replace per hub info structs Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Create per cpu info structs to replace per hub info structs tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 20/21] X86_64, UV: Remove Obsolete GRU MMR address translation Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Remove Obsolete GRU MMR address translation tip-bot for Dimitri Sivanich <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 16/21] X86_64, UV: Add obtaining GAM Range Table from UV BIOS Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Add obtaining GAM Range Table from UV BIOS tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 19/21] X86_64, UV: Update physical address conversions for UV4 Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Update physical address conversions for UV4 tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 05/21] X86_64, UV: Prep for UV4 MMR updates Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Prep for UV4 MMR updates tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 02/21] X86_64, UV: Add UV Architecture Defines Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Add UV Architecture Defines tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 01/21] X86_64, UV: Add Initial UV4 definitions Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Add Initial UV4 definitions tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 12/21] X86_64, UV: Move blade local processor ID to the per cpu info struct Mike Travis <travis@sgi.com> - 2016-04-30 00:00 +0200
[tip:x86/platform] x86/platform/UV: Move blade local processor ID to the per cpu info struct tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:30 +0200
[PATCH 04/21] X86_64, UV: Add UV MMR Illegal Access Function Mike Travis <travis@sgi.com> - 2016-04-30 00:10 +0200
[tip:x86/platform] x86/platform/UV: Add UV MMR Illegal Access Function tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
[PATCH 08/21] X86_64, UV: Clean up redunduncies after merge of UV4 MMR definitions Mike Travis <travis@sgi.com> - 2016-04-30 00:10 +0200
[tip:x86/platform] x86/platform/UV: Clean up redunduncies after merge of UV4 MMR definitions tip-bot for Mike Travis <tipbot@zytor.com> - 2016-05-04 09:20 +0200
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